linux-kernel - [PATCH v3 3/3] PCI: qcom: Update ICC and OPP values during link up event

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Message-ID: <20241101-remove_wait-v3-3-7accf27f7202@quicinc.com>
Date: Fri, 1 Nov 2024 17:04:14 +0530
From: Krishna chaitanya chundru <quic_krichai@...cinc.com>
To: Jingoo Han <jingoohan1@...il.com>,
        Manivannan Sadhasivam
	<manivannan.sadhasivam@...aro.org>,
        Lorenzo Pieralisi
	<lpieralisi@...nel.org>,
        Krzysztof Wilczyński
	<kw@...ux.com>,
        Rob Herring <robh@...nel.org>, Bjorn Helgaas
	<bhelgaas@...gle.com>
CC: <linux-pci@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-msm@...r.kernel.org>, <quic_mrana@...cinc.com>,
        <quic_vbadigan@...cinc.com>,
        Krishna chaitanya chundru
	<quic_krichai@...cinc.com>
Subject: [PATCH v3 3/3] PCI: qcom: Update ICC and OPP values during link up
 event

As part of the PCIe link up event, update ICC and OPP values
as at this point only driver can know the link speed and
width of the PCIe link.

Signed-off-by: Krishna chaitanya chundru <quic_krichai@...cinc.com>
---
 drivers/pci/controller/dwc/pcie-qcom.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c
index 474b7525442d..5826c0e7ca0b 100644
--- a/drivers/pci/controller/dwc/pcie-qcom.c
+++ b/drivers/pci/controller/dwc/pcie-qcom.c
@@ -1558,6 +1558,8 @@ static irqreturn_t qcom_pcie_global_irq_thread(int irq, void *data)
 		pci_lock_rescan_remove();
 		pci_rescan_bus(pp->bridge->bus);
 		pci_unlock_rescan_remove();
+
+		qcom_pcie_icc_opp_update(pcie);
 	} else {
 		dev_WARN_ONCE(dev, 1, "Received unknown event. INT_STATUS: 0x%08x\n",
 			      status);

-- 
2.34.1